121201331343 has 16 divisors (see below), whose sum is σ = 171335655936. Its totient is φ = 75946608000.

The previous prime is 121201331333. The next prime is 121201331399. The reversal of 121201331343 is 343133102121.

It is not a de Polignac number, because 121201331343 - 2¹⁰ = 121201330319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201331333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543921 + ... + 1620522.

It is an arithmetic number, because the mean of its divisors is an integer number (10708478496).

Almost surely, 2^121201331343 is an apocalyptic number.

121201331343 is a deficient number, since it is larger than the sum of its proper divisors (50134324593).

121201331343 is a wasteful number, since it uses less digits than its factorization.

121201331343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165214.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 121201331343 its reverse (343133102121), we get a palindrome (464334433464).

The spelling of 121201331343 in words is "one hundred twenty-one billion, two hundred one million, three hundred thirty-one thousand, three hundred forty-three".